I was under the impression 650's are fine. I have what you have installed but not the turbo. I did the injectors ahead of time and tuned for them. What about a 3 port ebcs while you are at it?

Honestly I started it up with the 650cc's and it ran like crap but it ran enough to get about 15 miles.

If your tuner does not give u a base tune you can do it yourself with a tactrix cable. There is a thread on romraider forums about it. I believe it is just the latency or flow table. But you need fine tuning after...